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Finding the Fourth Proportional to 16,489.94, 24,729.64 and 5,393.63

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Solution

The fourth proportional to 16,489.94, 24,729.64 and 5,393.63 is: 8,088.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,489.94 : 24,729.64 = 5,393.63 : x
  2. Step 2: Convert to fraction form
    16,489.94/24,729.64 = 5,393.63/x
  3. Step 3: Cross multiply
    16,489.94x = 24,729.64 × 5,393.63
  4. Step 4: Simplify right side
    16,489.94x = 133,382,576.53
  5. Step 5: Solve for x
    x = 133,382,576.53/16,489.94
  6. Step 6: Final answer
    x = 8,088.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.